I think the biggest bugbears are,
Knowing that these cars took months to model when something else could have been modelled instead and the fact they are pure fantasy rather than starting as 'real' concept cars which were often more closely linked to future production vehicles such as those seen in GTC.
It's a shift away from realism which may or may not appeal, pretty such seems to be the norm now with Forza also having quite a few fantasy vehicles.
I remain adamant that it’s a double-standard to turn a blind eye towards concept cars that never made production, but get all up in arms over the VGT program. Some of them are even driveable in real life, like one of the Audi VGTs. And some non-VGT concept cars that’ve appeared in GT were just models that were shown without an engine, or even an interior, like the FT-86 II.
I enjoy both, personally - though I’d hope every car in GT7 has a cockpit, whether it’s the Toyota S-FR Racing Concept, or the Mercedes-Benz Vision Gran Turismo.
People get mad they’re not adding the cars they want and immediately assume they take away from the development time needed to scan other cars
So it sounds like it's yet another case of people knowing nothing about game development. And I admit that I'm hardly one to talk, myself!
It reminds me of how, whenever there's a mention in the news of some multi-million dollar project, there's sometimes somebody in the comments that claims "They could've used that money to cure cancer," or something similarly as asinine.